Bug#1030336: ... Darktable does not work well under OpenCL.

[Ole Streicher]

Control: affects -1 darktable

It is (for my driver) in the libnvidia-nvvm4 package:

  $ apt-file search libnvidia-nvvm.so
libnvidia-libnvidia-nvvm4: /usr/lib/x86_64-linux-gnu/nvidia/current/libnvidia-nvvm.so.4
libnvidia-nvvm4: /usr/lib/x86_64-linux-gnu/nvidia/current/libnvidia-nvvm.so.525.85.12
libnvidia-tesla-470-nvvm4: /usr/lib/x86_64-linux-gnu/nvidia/tesla-470/libnvidia-nvvm.so.4
libnvidia-tesla-470-nvvm4: /usr/lib/x86_64-linux-gnu/nvidia/tesla-470/libnvidia-nvvm.so.4.0.0
libnvidia-tesla-510-nvvm4: /usr/lib/x86_64-linux-gnu/nvidia/tesla-510/libnvidia-nvvm.so.4
libnvidia-tesla-510-nvvm4: /usr/lib/x86_64-linux-gnu/nvidia/tesla-510/libnvidia-nvvm.so.4.0.0
libnvidia-tesla-nvvm4: /usr/lib/x86_64-linux-gnu/nvidia/tesla/libnvidia-nvvm.so.4
libnvidia-tesla-nvvm4: /usr/lib/x86_64-linux-gnu/nvidia/tesla/libnvidia-nvvm.so.525.85.12

I think that there is a missing dependency somewhere, and probably a
missing alternatives selection. I have put darktable to the "affects" to
have them included in the discussion.